C# Singleton

class Singleton
{
    private static volatile Singleton _instance;
    private static object _lock = new object();

    private Singleton() { }

    public static Singleton Instance
    {
        get
        {
            if (_instance == null)
            {
                // Locking makes Singleton thread-safe
                lock (_lock)
                {
                    if (_instance == null)
                    {
                        _instance = new Singleton();
                    }
                }
            }
            return _instance;
        }
    }
}